package com.xr.common.utils;

import cn.hutool.core.util.ObjectUtil;
import lombok.extern.slf4j.Slf4j;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Locale;
import java.util.Map;

@Slf4j
public class XrObjectConverter {

    public static Object mapToJavaBean(Map<?, ?> map, Class<?> clazz) {
        if (ObjectUtil.isEmpty(map)) {
            return null;
        }
        Object object = null;
        try {
            object = clazz.newInstance();
            // 获取自定义clazz类的全部字段
            Field[] fields = object.getClass().getDeclaredFields();
            for (Field field : fields) {
                // 获取字段修饰符 需要排除静态及final修饰的字段
                int modifiers = field.getModifiers();
                if (Modifier.isStatic(modifiers) || Modifier.isFinal(modifiers)) {
                    continue;
                }
                // 强制设置为 true 即可以对字段值进行设置 防止一些方法阻碍我们对属性进行赋值
                field.setAccessible(true);
                if (field.getType() == Integer.class) {
                    field.set(object, Integer.valueOf(map.get(field.getName()).toString()));
                } else if (field.getType() == Long.class) {
                    field.set(object, Long.valueOf(map.get(field.getName()).toString()));
                } else if (field.getType() == String.class) {
                    field.set(object, map.get(field.getName()).toString());
                } else if (field.getType() == Boolean.class) {
                    field.set(object, Boolean.valueOf(map.get(field.getName()).toString()));
                } else if (field.getType() == Date.class) {
                    String dateString = map.get(field.getName()).toString();
                    Date date = convertDateStringToDate(dateString);
                    field.set(object, date);
                } else if (field.getType() == LocalDateTime.class) {
                    String localDateTimeString = map.get(field.getName()).toString();
                    LocalDateTime localDateTime = convertLocalDateTimeStringToDate(localDateTimeString);
                    field.set(object, localDateTime);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return object;
    }

    private static Date convertDateStringToDate(String dateString) {
        SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US);
        Date date = null;
        try {
            date = sdf.parse(dateString);
        } catch (Exception e) {
            log.error("解析错误，日期格式不合法！");
            e.printStackTrace();
        }
        return date;
    }

    private static LocalDateTime convertLocalDateTimeStringToDate(String localDateTimeString) {
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS");
        LocalDateTime localDateTime = null;
        try {
            localDateTime = LocalDateTime.parse(localDateTimeString, df);
        } catch (Exception e) {
            log.error("解析错误，日期格式不合法！");
            e.printStackTrace();
        }
        return localDateTime;
    }

}
